/*
 * Copyright (c) 2011-2015 Pivotal Software, Inc.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */

package org.camunda.bpm.extension.reactor.projectreactor.registry;


import java.util.function.Consumer;

/**
 * @author jbrisbin on 1/27/15.
 * @author smaldini
 */
public abstract class Registries {

  private static boolean GS_COLLECTIONS_AVAILABLE = false;

  static {
    try {
      GS_COLLECTIONS_AVAILABLE = (null != Class.forName("org.eclipse.collections.api.list.MutableList"));
    } catch (ClassNotFoundException e) {
    }
  }

  protected Registries() {
  }

  @SuppressWarnings("unchecked")
  public static <K, V> Registry<K, V> create() {
    return create(true, true, null);
  }

  public static <K, V> Registry<K, V> create(boolean useCache, boolean cacheNotFound, Consumer<K> onNotFound) {
    if (GS_COLLECTIONS_AVAILABLE) {
      return new CachingRegistry<K, V>(useCache, cacheNotFound, onNotFound);
    } else {
      return new SimpleCachingRegistry<K, V>(useCache, cacheNotFound, onNotFound);
    }
  }

}
